With virtual fencing, boundaries are drawn entirely by global positioning satellite (GPS) and exist only as a line on a computer. There are no wires or fixed transmitters used.The animals wear collars containing software that identifies where they are and emit a sound when they approach the boundary. The sound replaces the visual cue of a conventional electric fence that cows learn to avoid.
The sophisticated software embedded in the system enables it to respond to varying animal temperaments. The research, overseen by an independent animal welfare expert, also showed the animals are not unduly stressed by the virtual fence.
Photographer : David McClenaghan on August 06 2007.
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<table style="border:1px solid;padding:2px; width:310px;" ><tr><td><a href="https://www.scienceimage.csiro.au/image/8225/"><img src="https://www.scienceimage.csiro.au/images/embed/300_200_GA8661.jpg" width="300" alt="CSIRO research scientist Dr Caroline Lee and Project Officer Mr Jim Lea attaching a collar as part of the virtual fencing project at FD McMaster Laboratory near Armidale, NSW" style="margin: 0 0 5px 0; border: 0px;"></a><br/><a href="https://www.scienceimage.csiro.au/image/8225/">CSIRO research scientist Dr Caroline Lee and Project Officer Mr Jim Lea attaching a collar as part of the virtual fencing project at FD McMaster Laboratory near Armidale, NSW</a><br />by CSIRO</td></tr></table>
![]() CSIRO research scientist Dr Caroline Lee and Project Officer Mr Jim Lea attaching a collar as part of the virtual fencing project at FD McMaster Laboratory near Armidale, NSW by CSIRO |
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